Cross-Version Extension for ElementDefinition.defaultValue[x] in R4

URL

http://hl7.org/fhir/4.0/StructureDefinition/extension-ElementDefinition.defaultValue[x]

Version

Status

active

Description

Cross-Version Extension for ElementDefinition.defaultValue[x]. Valid in versions R2, R3, R4B, R5

This is a valid extension because it has the types ContactDetail, Expression, UsageContext, TriggerDefinition, Contributor, canonical, DataRequirement, RelatedArtifact, Dosage, uuid, url, ParameterDefinition

Context of Use

This extension may be used in the following contexts:

element ElementDefinition (For version R5)
extension http://hl7.org/fhir/5.0/StructureDefinition/extension-ElementDefinition
element ElementDefinition (For version R4B)
extension http://hl7.org/fhir/4.3/StructureDefinition/extension-ElementDefinition
element ElementDefinition (For version R3)
extension http://hl7.org/fhir/3.0/StructureDefinition/extension-ElementDefinition
element ElementDefinition (For version R2)
extension http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition

Name	Card.	Type	Description & Constraints
Extension	0..1	Extension	Specified value if missing from instance
extension	..0
value[x]	1..
valueCanonical		canonical(Any)
valueUrl		url
valueUuid		uuid
valueContactDetail		ContactDetail
valueDataRequirement		DataRequirement
valueExpression		Expression
valueParameterDefinition		ParameterDefinition
valueRelatedArtifact		RelatedArtifact
valueTriggerDefinition		TriggerDefinition
valueUsageContext		UsageContext
valueDosage		Dosage
url			"http://hl7.org/fhir/4.0/StructureDefinition/extension-ElementDefinition.defaultValue[x]"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-eld.defaultValue[x]",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-ElementDefinition.defaultValue[x]",
  "name" : "XVerExtensionElementDefinition.defaultValue[x]R4",
  "title" : "Cross-Version Extension for ElementDefinition.defaultValue[x] in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "HL7 FHIR Standard",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  }],
  "description" : "Cross-Version Extension for ElementDefinition.defaultValue[x]. Valid in versions R2, R3, R4B, R5\r\n\r\nThis is a valid extension because it has the types ContactDetail, Expression, UsageContext, TriggerDefinition, Contributor, canonical, DataRequirement, RelatedArtifact, Dosage, uuid, url, ParameterDefinition",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "fhirVersion" : "5.0.0",
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "5.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "5.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ElementDefinition"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-ElementDefinition"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "4.3"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "4.3"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ElementDefinition"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/4.3/StructureDefinition/extension-ElementDefinition"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ElementDefinition"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-ElementDefinition"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "ElementDefinition"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Specified value if missing from instance",
      "definition" : "The value that should be used if there is no value stated in the instance (e.g. 'if not otherwise specified, the abstract is false').",
      "comment" : "Specifying a default value means that the property can never been unknown - it must always have a value. Further, the default value can never be changed, or changed in constraints on content models. Defining default values creates many difficulties in implementation (e.g. when is a value missing?). For these reasons, default values are (and should be) used extremely sparingly. \n\nNo default values are ever defined in the FHIR specification, nor can they be defined in constraints (\"profiles\") on data types or resources. This element only exists so that default values may be defined in logical models.",
      "min" : 0,
      "max" : "1",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : "N/A (MIF territory)"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "canonical"
      },
      {
        "code" : "url"
      },
      {
        "code" : "uuid"
      },
      {
        "code" : "ContactDetail"
      },
      {
        "code" : "DataRequirement"
      },
      {
        "code" : "Expression"
      },
      {
        "code" : "ParameterDefinition"
      },
      {
        "code" : "RelatedArtifact"
      },
      {
        "code" : "TriggerDefinition"
      },
      {
        "code" : "UsageContext"
      },
      {
        "code" : "Dosage"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-ElementDefinition.defaultValue[x]"
    }]
  }
}